Nozzle for filters and similar devices.



0. SELG. NOZZLE FOB. FILTERS AND SIMILAR DEVICES;

APPLIUATION FILED SEPT.14. 1909.

Patented June 7, 1910.

UNITED STATES PATENT OFFICE.

OTTO SELG, OF NEW YORK, N. Y., ASSIGNOR TO THE SELG BREWERY APPARATUS COMPANY, OF NEW YORK, N.

Y., A CORPORATION OF NEW YORK.

NOZZLE FOR FILTERS AND SIMILAR DEVICES.

Specification of Letters Patent.

Application filed September 14, 1909. Serial No. 517,595.

I '0 all whom it may concern:

Be it known that I, OTTO SELe, a citizen of the'United States, residing at the city of New York, borough of Manhattan, county and State of New York, have invented an Improved Nozzle for Filters and Similar Devicesof which the following is a specification.

This invention relates to a liquid discharge nozzle for filters, mash tubs and similar devices, within which a solid constituent of said liquid has been separated and retained.

The object of the invention is to prevent the clogging of the filter through suction by the solid residue so that a free and unimpeded discharge of the liquid is insured.

In the accompanying drawing: Figure 1 is a longitudinal section of my improved Ifi OZZlG, Fig. 2 a cross section on line 22,

i 1, Fig. l, and Fig. 4: a side view partly in section of a mash tub provided with my improved nozzle.

A mash tub, filter or similar device 10 is provided with an inclosed strainer 11 and with a discharge pipe or spud 12 below said strainer. Into pipe 12 is screwed a nipple composed of an upper tubular section 13, a lower bulged or expanded section 14:, and an intermediate inclined section 15 forming a valve seat. Lower bulged section 14 has an inwardly extending threaded rim 16 which engages the upper threaded end of a centered pipe 17, depending from the nipple. This pipe is surmounted by a coniform head or valve 18 that projects into upper nipple section 13 and has a circumferential groove which accommodates a packing ring 20 adapted to enga e seat 15'.

'Upper end 0 pipe 17 extends into the bulged lower section 14 of the nipple, so that an annular chamber 22 is formed below valve seat 15 and above rim 16 that encompasses upperend of pipe 17. Communication between this chamber and the interior of pipe 17 is established by a series of lateral openings 21 formed' in pipe 17 near the top thereof. Axially through pipe 17 extends a shaft 28 which depends from head 18 into tapped. This shaft carries be.- series of segmental baflie' which it is low openings 21 a plates -2& which are so arranged that ad- ]01D.1Ilg Baffle p ates 24 are shaft 23 by-integral hubs 25".tapped for,

Fig. 3 a similar section on line 33,

head into-thepi e, an

:riede by the sh lates project in oppos te directions. adjustably secured to.

reception of clamp screws 26 that impinge against the shaft. Below the baflle plates, there is fitted on shaft 23 a circular bottom plate 27 having a number of evenly distributed orifices 28 that insure a uniform discharge of the filtrate.

When pipe 17 is screwed up, packing 20 will be forced against seat 15 so that the nozzle is closed. When the pipe is screwed down, the liquid will fiow around valve 18, into chamber 22 and thence through openings 21 into pipe 17. Within this pipe, the liquid will descend in a sinuous course over bafile plates 24:, so that the formation of a rapidly descending solid stream is prevented which would be liable to induce suction at strainer 11. The result is, that clogging of the strainer is obviated and a uniform discharge of the filtrate is obtained.

I claim:

1. A device of the character described, comprising a nipple having a lower ex panded section, a pipe projecting upwardly into said expanded section to form an intervening annular chamber that encompasses the inclosed end of the pipe, perforations in the pipe that open into said chamber, and bafiie plates within the pipe.

2. A device of the character described, comprising a nipple having a valve seat, an expanded section below the valve seat, and a threaded inwardly extending rim at the lower end of the expanded section, a threaded pipe engaged'by said rim and projecting upwardly into the expanded section to form an intervening annular chamber that encompasses the inclosed end of the pipe, per forations in the pipe that open into said chamber, a valve on the pi e adapted to engage the valve seat, and ba e plates within the pipe.

3. A- device of the character. described, comprising a nipple having a lower ex- Patented June 7, 1910.

panded section, a pipe engaged by the nipple and communlcatingtherewith, a head on the pipe, a shaft de ending from said a ser es of baflle plates and a per orated bottom plate car- "aft.

Signed by me at New York city, N. Y.,

this-11th day of September 1909.

OTTO SELG. Witnesses FRANK v, Between, 

